39905440

素因数分解:

$2^5\times 5^1\times {\mathrm{443}}^1\times {\mathrm{563}}^1$

素因数の和:1021

約数の個数: 48

約数和(自身を含む): 94657248

約数和(自身を除く): 54751808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 443, 563, 886, 1126, 1772, 2215, 2252, 2815, 3544, 4430, 4504, 5630, 7088, 8860, 9008, 11260, 14176, 17720, 18016, 22520, 35440, 45040, 70880, 90080, 249409, 498818, 997636, 1247045, 1995272, 2494090, 3990544, 4988180, 7981088, 9976360, 19952720, 39905440]

約数ペア:

[(1, 39905440), (2, 19952720), (4, 9976360), (5, 7981088), (8, 4988180), (10, 3990544), (16, 2494090), (20, 1995272), (32, 1247045), (40, 997636), (80, 498818), (160, 249409), (443, 90080), (563, 70880), (886, 45040), (1126, 35440), (1772, 22520), (2215, 18016), (2252, 17720), (2815, 14176), (3544, 11260), (4430, 9008), (4504, 8860), (5630, 7088)]